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mt76 mt7915: restart target on MCU timeout #3212

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mt76 mt7915: restart target on MCU timeout #3212

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44 changes: 44 additions & 0 deletions patches/openwrt/0009-mt7915-restart-target-on-MCU-timeout.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,44 @@
From: David Bauer <[email protected]>
Date: Sat, 2 Mar 2024 23:22:13 +0100
Subject: mt7915: restart target on MCU timeout

Signed-off-by: David Bauer <[email protected]>

diff --git a/package/kernel/mt76/patches/100-mt7915-trigger-reset-upon-MCU-timeout.patch b/package/kernel/mt76/patches/100-mt7915-trigger-reset-upon-MCU-timeout.patch
new file mode 100644
index 0000000000000000000000000000000000000000..93a1807314df519749cf13da4e7e69be9ac145e3
--- /dev/null
+++ b/package/kernel/mt76/patches/100-mt7915-trigger-reset-upon-MCU-timeout.patch
@@ -0,0 +1,32 @@
+From 031d12d6f6a37d53ba0d8f26e0103d70a925d4eb Mon Sep 17 00:00:00 2001
+From: David Bauer <[email protected]>
+Date: Sat, 2 Mar 2024 21:23:06 +0100
+Subject: [PATCH] mt7915: trigger reset upon MCU timeout
+
+---
+ mt7915/mcu.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/mt7915/mcu.c b/mt7915/mcu.c
+index 8224f8be..590a8b24 100644
+--- a/mt7915/mcu.c
++++ b/mt7915/mcu.c
+@@ -157,12 +157,15 @@ static int
+ mt7915_mcu_parse_response(struct mt76_dev *mdev, int cmd,
+ struct sk_buff *skb, int seq)
+ {
++ struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76);
+ struct mt76_connac2_mcu_rxd *rxd;
+ int ret = 0;
+
+ if (!skb) {
+ dev_err(mdev->dev, "Message %08x (seq %d) timeout\n",
+ cmd, seq);
++ dev->recovery.state |= MT_MCU_CMD_WDT_MASK;
++ mt7915_reset(dev);
+ return -ETIMEDOUT;
+ }
+
+--
+2.43.0
+
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